con-nell



(No Model.) 5 sheets-sheet 1.

J. CONNELL su V. DENGLBR.

RBSAWING MACHINE.

No. 243,692. Patented July 5, 1.881.

(Nol-01191.) 5 Sheets-Sheet 2;

.J. CONN'BLL & V. DENGLER.

RESAWING MACHINE. No.- 243,692. Patented July V5, 1881.

(No Model.) 5 Sheets-Sheet 3.;

J. CON-NELL av v; DBNGLBR. RESAWING MACHINE.

No'. 243,692. A Patented July 5, 1881.

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J. CONNELL & v DBNGLER.

RESAWING MACHINE. No. 243,692. Patented July 5, 1881.

(No Model.; 5 sheets-sheet 5.

J. OONNELL 8u 'V'. DENGLER.

RESAWING MACHINE. No. 243,692. Patented July 5, 1881.

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UNITED STATES PATENT OFFICE.

JOHN CONNELL AND VALENTINE DENGIJER, OF ROCHESTER, NEW YORK.

RESAWlNCY-MACHINE.

SPECIFICATION forming part of Letters Patent No. 243,692, dated AJ'uly5, 1881. Application sied May e, leso. (No model.)

of Rochester, in the State of New York, have 5 jointly invented certainImprovements in Re-VV sawing-Machines, ot' which the following is aspecification, reference being had to the annexed drawings, in which-Figurel is a side elevation of our improved resawing-machine. Fig. 2 isa planview. of the same. Fig. 3 is a front elevation. Fig. 4

is a plan view of the feeding-rolls, bed-plate,

and clamps. Fig. 5 is an inverted view of the bed-plate, theexpansion-gearing being removed. Fig. 6 is an inverted view of thebedplate and the expansion-gearing. Fig. 7 is a vertical section on theline a' a', Fig. 2, showing the parts in front of that line, the sawbeing omitted. Fig. 8 is a section on the line z a, Fig. 4.

Our invention relates to certain improvements in resawing-inachines,having for their` object the production of a machine capable of doing agreater variety of work and of doing ordinary work better than themachines heretofore in use; and our invention consists in a novelarrangement and construction ot' the feeding-rollers; ina new mode ofcombining the self-centering feeding-rollers, so that they may beadjusted; in the construction of the expansion driving-gearing, and inself-adjusting clamps.

Our invention also consists in the mechanical details of theconstruction, as hereinafter more fully set forth.

Our improved resawing-machine is illustrated in the accompanyingdrawings, in which A A are the side frames of the machine, B Bl and() C'the feeding-rollers, and D the saw. The side frames are connectedtogether at their forward ends by a transverse bed-plate, E, whichsupports the feeding-rollers, and toward the rear of the machine by thecross-bars a a', Fig. 2. These cross-bars are connected together by orare cast in one piece with the longitudinal bars b b', which carry thejournals for the saw. Power is applied to the shaft c, carrying the saw,by means of the pulley F, and motion is transmitted to the feedrolldriving shaft e by means of pulleys cl d and belt d.

The belt d is used for reversing the motion ot' the feeding-rollers bymeans ot' the clutch f. The saw-shaft c is supported at a suitabledistance above the upper part of the frame by means ofjournal-boxes, oneof Which is shown at e', Fig. 2. The material to be sawed is'fed throughthe machine against the saw between the feeding-rollers, passing overthe supporting-plate c', which is provided at its forward end With thefriction-roller g. While passing through the machine the stull is heldand controlled by the clamps G G andby` the guides H Hf, placed at eachside ot' the saw.

The feeding-rollers B C and B C are supported by sliding plates I I',Whichare attached to the bed-plate E by gibs 't' i', Figs. l and 3, tting over flanges on the sides thereof, so that the plates I I and thefeed-rolls may have a to-and-fro movement transversely yto the line offeed, as .represented by the dotted lines in Fig. 4.

In order to make the feed-rolls self-centering-that is, so that they mayrecede equally in opposite directions from 'the line ot feedwe haveconnected the two plates I and I together by the pinion and racks j lol, Figs.

l, 2, and 4. The rack l is attached to the plate I by means of a rod,l', (shown in dotted lines in Figs. 2 and 4,) which passes Within thehollow bed-plate E, and is attached to a lug, j, projecting downwardfrom the plate I. (See Fig. 7.) The rack 7c is attached to the plate I.In consequence of this arrangement ot' the parts any motion ot either ofthe plates I or I/will be transmitted to the other in an oppositedirection. In order to permit of the shifting of the line of centersbetween the feed-rolls transversely across the machine, provision ismade for moving the pinion j. The pinion j is supported by a stud on theslide m, which is arranged to be adjusted on ways attached to thebed-plate E or the side fr.une,A. Athreaded rod, o, passes underneaththe bed-plate and through the slide m. By turning the handwheel 'n onthe rod 0 the position of' the slide mis changed andthe rolls B C. B C'are shifted bodily across the machine. They may thus be brought into anydesired relationwith the saw, while at the same timetheir'self-centering arrangement is retained. The hub of the hand- IOO.

wheel a has a groove in it, into which is tted a stationary piece, j",Fig. 3, attached to the main frame of the machine, for the purpose ofpreventing longitudinal movement in the shaft o.

When the machine is to be used with the feeding-rollers B G stationary,this is accomplished in the following manner: The rack k is attached tothe sliding plate I by the rod J, Fig. 3, which is provided with ahand-wheel. A horizontal slot is eut in the bed-plate E to permit ofto-and-fro motion of this rod. (See Fig. 3.) A lug,j7, Fig. 5, isprovided on the lower side of the sliding plate, I', into which the rodscrews, and against which it binds the rack k by means of a shoulder onthe rod.

"When it is desired to use the machine for slabbing or for otherpurposes with the feeding-rollers B C stationary, the clamping-rod J isremoved and the plate I is rigidly fastened in any desired position onthe bed-plate E by means of the rod g', which screws into the outer endofthe plate I', and is provided with collars on each side of the end barof the bed-plate E, by which it is prevented from sliding through thebed-plate. When the feeding rollers are arranged so as to beself-centering, one or both of the collars on the rod g' should be'movedback.

The feed-roll B is supported on the plate I by an independent slide, K,which is arranged to slide on the plate I within a dovetail. The objectof this arrangement is to allow the roller B to yield back over anyirregularities in the lumber to be sawed by the machine. rIhe upper endof the roller is supported by a bracket, h', bolted to the slide K, andcarrying at its upper end a sliding yoke, e, which reaches inward andsupports the box at the top of the roller. The yoke e is fitted to theupper end of the bracket h by a tongue and groove, so that the yoke mayslide on the bracket. A spring on a threaded rod,j, passing through thetop of the bracket, holds the yoke e and the top of the roller B up toits work. The position of the yoke c" may be adjusted by means of therod j', which is provided with a collar, bearing on the inside of aslotted lug attached to the outer end of the yoke. The collar on theoutside of the slotted lug is loose on the rod. The yoke may, ifdesired, be readily fastened to the bracket It by means of theclamping-screw t.

The slide Kis pressed toward the board by a spring ou the threaded rodj, which screws `means of the threaded rod j.

The roller B' is arranged to slide on the plate I by means of the slideL. The position of the roller B on the slide Il is adjusted by thethreaded rod a, provided with a hand-wheel, b, and which screws into theplate I. The slide L may be clamped to the plate I by means of thescrews 0. The upper part of the roller B is supported by the bracket h,bolted to the slide L, and provided at its upper end with a yoke, 0',having an adjustingscrew,j", and a clamping-screw, i.

The roller G is carried by the plate I by a bracket bolted to the plate,and provided at its upper end with an adjustable yoke arranged in amanner similar to the adjustable yoke of the roller B.

Ilhe'roller C is supported on the plate I 'by a bracket bolted to thesaid plate, and provided at its upper end with a sliding yoke arrangedto yield back on a spring on the threaded rod jt, Fig. 2, in a mannersubstantially similar to that already described in regard to the upperend of roller B. The feeding-rollers are all of them connected at theirlower ends with their respective driving-shafts by a ball-and-clutchjoint. Y The driving-shafts of the rollers Band B are journaled on theplates K andr L, respectively, and the driving-shafts of the rollers Cand C are journaled in the plates I I', respectively, as shown at J J,Fig. 7. These shafts extend downward to a sufficient distance throughtheir bearings, and carry at their lower ends the driving-gearing o" 0o4 o5, Fig. 4.

From the worm on the shaft e power is transmitted to the wcrm-gearj'",which rotates on a stud fixed to the transverse bridge-tree f". Theworm-gearf is provided ou its upper side with a spur-gear, g", (shown bydotted circle, Fig. 6,) rigidly connected to it. Power is transmittedfrom the spur-gear g to the gears 0" and o5 on the driving-shafts of therollers B C', respectively, by means of the pinion l, which meshes withthe gear r rigidly attached to the stud t, which carries theintermediate gear', s. The stud trevolves in a suitable journal on theplate I. The pinion o* is supported by links (see dotted lines, Fig. 6,and V1 V5, Fig. 7 attached vrespectively to the stud of the worm-gearand to the stud t. By means of these links the pinion o is kept all thetime in mesh with the gear 9'"- and the gear r', not withstanding themotion of tliestud t to and from the stud on which the gear g revolves.The gears o and 04,:which drive the feed-rolls B C, respectively, arethemselves driven from the gear gf by the pinion u, which meshes withthe gear a on the lower end of the shaft of the gear o4. Motion istransmitted from the gear o4 to the gear o by means of theintermediategear, u, which revolves with the stud u', Fig. 2, journaled in the plateI. The pinion/u is supported by expansion-links V6, Fig. 7.

By the arrangement of the expansion-gearing herein described we areenabled to use a worm and wormgear for the transmission of motion fromthe driving-shaft e to the feed.

IOO

IIO

rollers, whereby we obtain a very powerful and f easily-reversiblefeed-motion.

- f, Fig. 2.

Between the first and second pairs of feedrolls are placed the verticalguards V V', the object of which is to enable the machine to saw shortstuff, and to prevent the end of the board,after ithas passed'throughthe first pair offeed-rollers, from swinging out of line. The guards V Vconsist of suitable metallic plates-connected by arms with the bracketsh h", respectively. The arms which support l the guards are attached tothe brackets by clamping-screws passing through slots in the arms, sothat the position of the guards may be adjusted with reference to thefeedingrolls B B.

Immediately behind the second pair of feedrolls, and a short distance infront of the saw, suitable curved clamps, G G', are placed on each sideof the board as it passes through the machine. The clamp G', on theboard or line side of the saw, is adjustably connected with the bracketwhich supports the feed-roller C'. Two arms, 7c k, of suitable length,extend backward from the bracket of the feed-roll, C. To the ends ofthese arms are attached, by screws passing through slots, theright-angled extension-pieces l, Figs. 2 and 7.

Attached to the clamp G are slotted arms n n, which are secured to theextension-pieces Z by means of bolts g passing through slots. The clampG is arranged to be adjusted on the extension-pieces L by means of thethreaded rods s s which are provided with hand-wheels having groovestted'into slots in lugs on the extension-pieces. By means of thethreaded rods s s" the position of the clamp G with reference to thefeed-roller C may be adj usted. The clamp G may be adjusted to and fromthe saw, to compensate for the wear thereof, by means of the boltspassing through the slots in the ends of the arms k k.

The clamp G, on the opposite sideof the saw, is attached -to the bracketof the feed-roll C in a manner similarto that alreadydescribed withregard to the clamp Gf, except that provision is made for allowing theclamp G to yield back over any irregularities in the material fedthrough the machine. This result is accomplished by attaching the clampto the extension-pieces l" by means of arms m m", which slidein suitableguideways W' W", formed on the extension-pieces.

Into the extension-pieces l are screwed the threaded rods w', each ofwhich is surrounded by a spiral spring.

To the arms m" m are pivoted the connections y y, which are provided attheir outer ends with slotted lugs embracing the rods x The pressure ofthe springs on the rods a," is transmitted to the clamp G through theconnections y'y and the armsm m. The arms m m are fitted in theguideways W W, so as to permit the clamp G to yield back more at its topthan at its bottom, or vice versa, in case the lumber passing throughthe machine should be thicker on one edge than the other. In order toaccomplish this result, the connections y y are pivoted to the arms mm", and are loosely connected to the threaded rods w by collars bearingon the inside of the lugs at the ends of the connections. The positionof the clamp G with reference to the roller C may be varied. By thisarrangement of parts the clamp G may be held vertically or inclined atanangle in either direction from the perpendicular, and its position maybe made to correspond with that of the feed-rollers B and C.

It will be observedfthat, in consequence of the arrangement of thefeeding-rollers and clamps herein described,.provision is-made tocompensate for all kinds of irregularities presented by the lumber to besawed.

On each side of the saw are placed the guides H H. These guides aredesigned more particularly for use in sawing short stuff, which passesinside the guides and between them and the spreaders M M. The guides andspreaders are supported by suitable standards, a b", which are attachedto the longitudinal bars b b. At their upper ends the standards a b formhorizontal plates on the same level with the feed-plate c', whichextends outward from the saw for the purpose of forming asupporting-surface for the material to be sawed. The guides HH aresecured to these horizontal plates by means of bolts passing throughslotted holes in flanges attached to the guides attheir lower edges. Theguides H H may be readily removed when the machine is used undercircumstances where their employment is unnecessary. By means of theguides B H channels are formed on each side of the saw, through whichpieces of sawed material of short length travel, each piece being pushedforward by the next succeeding one Without delay or mishap.

M M are the spreaders, which consist of vertical plates located at ornear the rear side ot' the saw and operating to relieve friction on thecollar and stiiening-plate. The material, after being sawed, passesbetween the guides H H and the spreaders M M.

We do not claim herein the construction ot the saw; but we reserve toourselves the right of filing a subsequent application on thesubject-matter thereof.

We are aware that the feedingrollers of resawing-machines have beenheretofore connected by a pinion and racks, so as to be selfcentering;but we are not aware that parts arranged as herein shown (the pinionbeing made adjustable across the machine so as to shift the central linebetween the rolls laterally) have been heretofore employed.

l. In combination with the saw D, the spread- IOO IIO

ers M M' and the outside guides, H H', forming a channel on each sideot' the saw for the passage of short stuff, substantially as described.

2. In combination with the saw D and feeding-rollers B B' C C', thespreaders M M' and the outside guides, H H', substantially as described.

3. In combination with the saw D and feedin g-rollers B B' C C', theguards V"V"', spreaders M M', and outside guides, H H', substantially asand for the purposes set forth.

4. In combination with the yielding clamp G, the arms m' m", arranged toslide loosely in gibs W' W" on the extension-pieces l" 1,", andconnections y y', whereby unequal motion of the upper and lower ends ofthe clamp is permitted, substantially as described.

5. In combination with the saw D, one or more pairs of self-centeringfeeding-rollers, when connected together by the racks 7c and l, and theadjustable pinionj, substantially as described.

6. In combination with suitable feedingrollers, the sliding plates I I',racks 7c and Z, movable pinion j, and adjusting-screw o, substan tiallyas described.

7. In combination with the saw D, the feeding-rollers B C andsupporting-plate I, carrying fixed roller C and independently-adjustableroller B', substantially as described.

JOHN CONNELL. VALENTINE DENGLER.

Witnesses:

GEO. B. SELDEN, WM. REBARZ, Jr.

